# Math Vs Undead vs Calcul Mental in Space

Math Vs Undead and Calcul Mental in Space both sit at 4.3 stars, but that hides the real split: 79% of Calcul Mental in Space's written reviews are positive against 48% of Math Vs Undead's. Calcul Mental in Space also leads on update cadence (every 6 days vs every 6 months) and ratings volume (576 vs 148). Math Vs Undead's advantage is iOS requirement (13.0 vs 15.0). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. Math Vs Undead sells 1 one-off in-app purchase and Calcul Mental in Space sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.3 for Math Vs Undead against 4.4 for Calcul Mental in Space. Both are backed by a comparable volume of ratings — 148 and 576 respectively. Written reviews are what separate them: 48% of Math Vs Undead's written reviews are positive against 79% of Calcul Mental in Space's.

Math Vs Undead ships an update every 6 months, Calcul Mental in Space every 6 days. The most recent releases landed on November 6, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Math Vs Undead | Calcul Mental in Space |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (148 ratings)](https://appshunter.io/ios/app/math-vs-undead-math-game/id687283022/reviews) | **[4.4 (576 ratings)](https://appshunter.io/ios/app/calcul-mental-in-space/id1510484802/reviews)** |
| Number of ratings | 148 | **576** |
| Positive reviews | 48.1% of reviews | **78.9% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 6 months | **Every 6 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 133 MB | 134 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 12+ |
| Developer | [Peaksel](https://appshunter.io/developer/618105376) | [Huy Le](https://appshunter.io/developer/1279607371) |

## What reviewers say

### Math Vs Undead

[App page](https://appshunter.io/ios/app/math-vs-undead-math-game/id687283022)

Engage in a thrilling math-based zombie shooter where solving arithmetic problems is your weapon. This game combines educational challenges with fun graphics to boost calculation speed and cognitive skills for all ages.

**Highlights:** Zombie shooter gameplay, Basic math operations (addition, subtraction, multiplication, division), 30 challenging levels, Improves calculation speed, Enhances cognitive functions, Eye-catching graphics

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock all levels | $4.99 | one-time |


### Calcul Mental in Space

[App page](https://appshunter.io/ios/app/calcul-mental-in-space/id1510484802)

Practice mental math with a fun, space-themed game. Improve your calculation speed, reflexes, and math skills through engaging challenges. Master addition, subtraction, multiplication, and division with increasing difficulty levels.

**Highlights:** Mental math practice, Speed and reflex training, Addition, subtraction, multiplication, division, Times and division tables review, Progressive difficulty levels, Achievement encouragement

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Upgrade to Premium | $2.99 | one-time |


## Frequently asked questions

### Is Math Vs Undead free?

Math Vs Undead is free to download, with in-app purchases available.

### Is Calcul Mental in Space free?

Calcul Mental in Space is free to download, with in-app purchases available.

### Which has better reviews, Math Vs Undead or Calcul Mental in Space?

Calcul Mental in Space is rated higher. Math Vs Undead averages 4.3 out of 5 from 148 ratings, while Calcul Mental in Space averages 4.4 from 576 ratings.

### Do Math Vs Undead or Calcul Mental in Space have ads?

Both Math Vs Undead and Calcul Mental in Space show ads.

### Which is updated more often, Math Vs Undead or Calcul Mental in Space?

Math Vs Undead ships an update every 6 months, and Calcul Mental in Space every 6 days. Most recently, Math Vs Undead was updated on November 6, 2026 and Calcul Mental in Space on November 7, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*